290 
MEXICO. 
\_Melastomacea. 
duobus, staminibns 12? subexsertis, filamentis quibusdam (3 vel 4?) nudis cseteris valde 
purpureo-lanatis duobus etiam ultra antheram purpureo-barbatis, stylo glabro incluso. 
Hab. Talisco. — This resembles, in some points, C. procumbens, Cav., but that has a much shorter flower, 
and the hairs on the calyx glandular. We judge that the terminal flowers form a spike-like raceme, from the 
appearance of one from which every flower has fallen off from the short pedicels. The tube of the calyx is 
rather more than an inch long. 
5. C. equipelala. Cav. — Hab. Talisco. 
Orb. XXXII. RHIZOPHORE^. Br. 
1. Rhizophora Mangle. Linn. 
Ord. XXXIII. COMBRETACE^. Br. 
1. Terminalia Cataffa. Linn. 
From the appearance of the specimens, w'e suspect that they were collected at the same time, and along with, 
those noticed from Loo Choo and Bonin. But we believe the species, or a variety of it, is also a native of 
Mexico. 
1 . Conocarpa erecta. H. B. K. 
1. Combretum farinosum. H. B. K. Nov. Gen. 6. p. 110. — Schlecht. in Linn. 5. p. 558. 
— Hab. Acapulco and Tepic. 
2. C. Mexicanum. H. and Bonpl. PI. Equin. 2. t. 132? 
Hab. Acapulco. — The petals of our plant are yellow ; the fruit is oblong and 4-winged. 
Ord. XXXIV. MELASTOMACE^. Juss. 
1. Conostegia Xalapensis. Don. — De Cand. Prod. 3./?. 175. Sehlecht. in Linn. 5. j). 
562. — Hab. Talisco. 
Folia in nostris oblongo-lanceolata basi subcordata, ciliato-serrata ; alabastrum ovatum apice acutiusculum. 
Petala rosea. Caetera ut in Melastomata Xalapensi Bonpl. videntur. 
HETEROCENTRON. Nov. Gen. 
Calyx campanulatus, membranaceus, extus adpresse setosus ; limbus quadripartitus, segmentis lanceolatis 
acuminatis persistentibus absque appendicibus alternantibus. Petala 4, late obovata. Stamina 8, quatuor 
longiora. Antherce oblongae erostratm obtusae uniporosm : longiorum connectivo stipitato ad articulationem 
setis duabus subclavatis instructo, breviorura basi bigibboso. Ovarium liberum apice nudum. Stylus fili- 
formis. Stigma acutum. Capsida inclusa, 4-locularis, apice loculicido-quadrivalvis. — Caulis basi lignosus. 
tetragoni hispidi. YoXm petiolata oblonga integerrima utrinque setosa, penninervia 1 (1^2 poll, 
longa, 8 lineas lata). Flores albi thyrsoidei, terminates, subpaniculati. ^ 
1. H. Mexicana. 
This plant does not accord with any of the genera described by De Candolle. It belongs to the Phexiaceoe, 
but is, nevertheless, allied to Castradenia of G. Don ( Gen. Syst. Gard. 2. p. 765), formed for the Rhexia 
incequilateralis of Schlechtendal {Linneea. 5.p. 567); in that, however, the connectivum of all the stamens 
seems to be stipitate, the ovarium to be crowned with a few hairs, the inflorescence to be axillary, and the pair 
of opposite leaves to be unequal. 
